Class 12 Biology - Chapter Biotechnology and its Application NCERT Solutions | Find out from internet what is golden ri

Welcome to the NCERT Solutions for Class 12th Biology - Chapter Biotechnology and its Application. This page offers a step-by-step solution to the specific question from Excercise ".$ex_no." , Question 8: find out from internet what is golden rice....
Question 8

Find out from internet what is golden rice.

Answer

Golden rice is a genetically modified variety of rice, Oryza sativa,which has been developedas a fortified food for areas where there is a shortage of dietary vitamin A. It contains a precursor of pro-vitamin A, called beta-carotene, which has been introduced into the rice through genetic engineering. The rice plant naturally produces beta-carotene pigment in its leaves. However, it is absent in the endosperm of the seed. This is because beta-carotene pigment helps in the process of photosynthesis while photosynthesis does not occur in endosperm. Since beta-carotene is a precursor of pro-vitamin A, it is introduced into the rice variety to fulfill the shortage of dietary vitamin A. It is simple and a less expensive alternative to vitamin supplements. However, this variety of rice has faced a significant opposition from environment activists. Therefore, they are still not available in market for human consumption.

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